Patents Assigned to MACT Co., Ltd.
  • Electrode wire for electric discharge machining and manufacturing method of the same
    Patent number: 7723635
    Abstract: Enhanced electrode discharge machining properties of an electrode wire are achieved when the electrode wire comprises a coil, a covering layer formed on a periphery of the coil, and grains formed on the covering layer. The grains comprise a copper-zinc alloy including about 0.01 to 0.5 weight % of at least one additive element selected from the group consisting of aluminum, tin, magnesium, lanthanum, cerium, nickel, manganese, titanium, and zirconium.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: May 25, 2010
    Assignee: MACT Co., Ltd.
    Inventor: Hyun-Sik Shin